Ironer apparatus



Nov. 20, 19,51 BURT 2,575,744

` IRONER APPARATUS Filed DeG. 2l, 1948 2 SHEETS--SHEET l faffify- G. H. BURT IRONER APPARATUS Nov. 20, 1951 Filed Dec. 21, 1948v 2 SHEETS-SHEET 2 away-14 plates 34 substantially across their entire widths and under that portion where the downward thrust of the hot roll I is greatest. Since the load on the rollers 4| may be relatively large, there is provided a further support to support and strengthen rollers 4I. This further support comprises a roller 38 on shaft 39, which shaft, of course, is lsuitably mounted in the framework of the apparatus. The diameter 0f roll 38 is such that it supports the rollers 4| Which, it will be noted, are of different size, the one in the middle being smaller than the two outside rollers, so that all the rollers H may ride on large roll 38 and yet a single horizontal tangent will contact the highest portion of the surface of each of the rolls 4l. Obviously, as roll 38 revolves, rollers 4I will or may revolve and thus supporting rolling Contact surfaces are provided under that portion of the endless conveyor tabl-e at the point Where the downward thrust of the hot ironing roll I0 is principally concentrated.

From the foregoing description the operation of the device should be obvious, that is, a board, the surface of which is to be ironed and with its surface preferably slightly moistened, either absorbed moisture or as moisture present in a coating applied thereto or the like, is run on the table and under the heated roll I8, the under surface of such sheet will be rmly supported on an endless, forwardly moving table on which it may be suitably ironed by the ironing action of the heated roll l0, Heated roll I0 will preferably be operated at a peripheral speed slightly different from the forward speed of the endless conveyor table, so that in addition to applying pressure to the surface of the sheet being run through the apparatus, there will be some sliding or frictional ironing effect obtained due to such diierence in speeds.

Of course, as previously referred to, suitable driving mechanisms are to be provided for driving shaft I2, shaft 25 and shaft 39 at properly coordinated speeds, but any conventional drive Will suflice and, therefore, this as well as the conventional means for loading ironer roll Hl, by applying a downward thrust thereto, have been omitted from the drawings in order that the novel features of the apparatus may be clearly disclosed and readily understood.

The invention hereof having been described in detail, I claim: l

1. In an apparatus for hot ironing a surface of berboard, in combination, a frame, a forwardly traveling nat bed, a heated roll superposed over the flat bed, a cylindrical thrust receiving abutment journaled to the frame under the roll and beneath the bed, and thrust transfer rollers interposed between the flat bed and the rotating abutment.

2. In the apparatus dened in claim 1, the traveling fiat bed comprising an endless plate conveyor.

3. In the apparatus defined in claim 2, the thrust transfer rollers comprising rollers of different diameters and the periphery of the rollers in contact with both the under side of traveling flat bed and the rotating thrust receiving abutment. ,I A,

4. Apparatus for hot ironing berboard and comprising, in combination, spaced conveyor chains, the chains made up of links and connecting pins, rollers mounted on the pins, plane surface plate members extending between the chains and mounted thereto, tracks mounted in operative relation to each of the chains and constituting a leveling support for the plate members whereby there is formed an endless traveling bed. a hot roll journaled for rotation over the traveling bed, a cylindrical thrust receiving abutment rotatably mounted below the traveling bed and thrust transfer rollers mounted between the underside of the traveling bed and the thrust receiving abutment.

5. Apparatus for hot ironing iberboard and comprising in combination, spaced conveyoi` chains, the chains comprising spaced side-links, and connecting pins spacing the side links and to which the side links are pivoted, rollers mounted on the pins between the spaced side links, support members mounted to the side links of the chain, plane surface plate members extending between the spaced conveyor chains and mounted to the support members thereon, support rails mounted in operative relation to eachV of the chains and comprising a guide for the rollers mounted on the pins of the conveyor chains and constituting leveling supports for the plate meme bers, whereby there'is formed an endless traveling bed, a hot'roll journaled for rotation over the traveling bed, a cylindrical thrust-receiving abutment rotatably mounted below the traveling bed, and thrust transfer rollers mounted between the under side of the traveling bed and the thrustreceiving abutment. v GEORGE H. BURT.

REFERENCES CITED Y The following references are of record in the -lle of this patent:

UNITED STATES PATENTS Number Name Date 1,944,280 Snyder Jan. 23, 1934 1,999,151 Finley Apr. 23, 1935 2,075,735 Loomis Mar. 30, 1937 2,178,674 Simons Nov. 7, 1939 

